Grinding-machine.



A. B. LANDIS.

GRINDING MACHINE.

APPLICATION FILED APE,25, 1902.

1,016,751. Patented Feb. 6, 1912.

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)Virmzaom A. B. LANDIS.

GRINDING MACHINE.

APPLIOATION FILED APR. 25, 1902.

1,01 6,751. Patented Feb. 6, 1912.

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06%: t Mug/M6 I flmm llNlTlltU ABRAHAM B. LANDIS, OF WAYNESBURO,

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GRINDING-MACHINE.

- Specification of Letters Patent.

Patented nee. e, 1912.

Application filed April 25, 1902. Serial No. 104,687.

driving power for said grinding wheel at all i angles, and it consists in various improvements in the construction and arrangement of parts whereby these objects are accomplished, all as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar,

parts: Figure l is an elevation of one side of a grinding machine embodying my said invention, a portion of the headstock base and frame being broken away to show the interior construction, and Fig. 2 an end elevation, a portion of the carriage and supporting frame upon which it is mounted being shown in section for the purpose of showing its peculiar construction.

In said drawings the portions marked A. represent the main frame or base of the machine; B the longitudinal traveling carriage; C the transverse movable slider mounted thereon; D the wheel base swiveled on said slider; E the motor mounted on said wheel base; F the headstock; and G the motor for driving the mechanism except the grinding wheel.

The main frame A is substantially of the same form and construction as shown in a number of my former patents. On one side it is formed with ways a and c to support the carriage B, and is formed with a trough orgutter a in its center, with an inclined surface leading thereto, to receive and conduct away the drippings and waste water. The carriage B is also of the usual construction, substantially as shown in my former patents, except that its top is formed guttershaped in cross section, with an aperture 6 at the bottom of said gutter which is immediately above the gutter a in the frame A below.' A guard b is attached to the rear edge of the frame A at its top, and extends over a portion of the table B, covering the way of, on which this edge of the table travels. Said guard extends from end to end of the machine, and thus covers the W3.

. when the carriage shall be moved back and forth and inclined. or curved downwardly at its inner edge to shed any water or other material into the gutter Zn from which it may run through holes 6 onto the inclined surface of the top. of the frame A. from whencejt will pass into the gutter (f, in the top of said frame A, thus completely protecting said way. A. similar guard 5 is mounted at one edge in a groove b in the frame just beneath the inner edge of table A, and projects inwardly and downwardly over the adjacent edge of carriage B cova. on which this edge of ering the way the carriage travels, and furnishing a downwardly inclined surface which will shed the water and dirt onto the inclined surface of the top of the carriage from whence it will pass through the aperture 6 into the gutter a in the top of the table. By means of these guards the ways on which the carriage travels are kept clean and-free from grit and dirt at all times. The slider C, and wheel base 7), are also of the usual construction and arrangement. The grinding wheel W is mounted on the mandrel d in the usual manner.

The motor E may be any ordinary electric motor, connected by the incoming and out-.

going line wires 10 and w, with any source of power. Said motor is provided with a pulley e on its shaft, which is connected by a belt 6 with a pulley (Z on the mandrel d of the grinding wheel. he motor being rigidly secured to the wheel base is necessarily adjusted. therewith, and thus furnishes a uniform driving power at all times and in all positions. The headstock F is journaled in a sleeve F, which sleeve is swiveled on the top of the base F which is mounted on the top of the table A, as shown in Fig. 1.

The headstock F, motor G, and mechanism for connecting them form the subjectmatter of a separate application, but will be briefly described herein to enable the construction and operation of the complete machine to be better understood.

The motor G is an ordinary electric motor of suitable power, mounted on a suitable bracket or frame A attached on one end of the main frame A of the machine. It is countershaft 1, journaled 1n suitable-bearings infsaid frame A betion, and a joint 6 extending in the other dilrection,

' -12 on said shaft f meshes with the gear wheel 13 on the short shaft 14, which extends driven in the usual manner, and as shown in v my former patents, eXtendsthrough bearings on said contour the purpose of -is mounted a gear wheel'i', which meshes and injbearings-formed in the base F on the headstock, through-which bearings said a spline or similar connection, being thus adapted to shde thereon. A gear wheel 11 plate 1* carrying the center. The pinion 15 on the end of the shaft llmeshes with an in- "te'rior gear within said face plate, thus gearing said holding centerneath the motor. A gear wheel 2 mounted shaft meshes with a smaller ear wheel 3 on thelower end of the vertical shaft t which is journaled in suitable bearings alongside said motor. Said shaft 4 is formed with a joint 5 extending in one direcand between said joints is formed two parts adapted to telescope one within the other, being held from independent motion or rotation by being formed angular in cross section, or by a'spline and groove connection. By this arrangement the table A, on which rest the headstockF and footstock F is permitted to swing to any angle for grinding tapers on centers,- etc., as will be readily understood. On the upper end of the upper portion of said shaft with a gear wheel 8 on the end of the horizontal shaft 9, which is journaled in bearings on a bracket. on the end of the table A shaft is adapted to slide. A gear wheel 10 is mounted on shaft 9 withinsaid base F? by orr the lower end of the shaft 1 mesheswyvith said gear wheel 10, and a similar gear wheel throughthe frame to withinthe disk or face to the'motor G, by which it is driven. j

The driving shaf't 16, from-which, the mechanism for operating the carriage is in theframe A and is geared to the counter shaft'l through suitable gear wheels, prefgrinding wheel being driven by an independerably of the construction which permits a change of. speed to be effected, as shown.

Ina machine of this construction, the

' may be of very simple construction,

through the secure by Letters Patent, is:

ent motor mounted upon the same base with said grinding wheel, its driving mechanism while it is permitted to be operated at various anglcs and adjusted positions, doing away with overhead gearing as in the ordinary .construction, as .will be readily understood.

.The arrangement for driving the. work headstock F and the carriage driving shaft 16 from the same motor, also makes a simple construction, and one adapt ed for universal grinding, giving the various required speeds of work and travel of grinding wheel by a constant speed motor.- A very simple: and compact-machine is thus provided, and one which maybe readily adapted for a large variety of work. I

Having thus fully described my said invention, whatI claim as new and desireto 1. In a grinding machine, tion, of the bed, the work holding and driving mechanism, carriage motor mounted on the bed and connected to drive the work and traverse the carriage, a slider mounted to move transversely upon said carriage, a grinding wheel base swiveled on said slider, another electric motor. mount-'.

ed upon said grinding wheel base, the grind-- ing wheel with its spindle journaled in bearings in said base, and gearing connecting the shaft of said motor with said grinding wheel spindle, substantially as set forth.

2. In a grinding machine, the bed'having longitudinal ways, a carriage mounted upon said ways, a grinding wheel mounted upon 7 said carriage, said ways covered by inwardly projecting'shields, said carriage having a water channel in its top and outlets from said channel communicating to a channel in said bed, substantially as set forth.

In hvitness whereof, I have hereunto set .mv hand and seal at 'Waynesboro, Pennsylvania, this 21st day of March, A. 1) nine teen hundred and two.

. ABRAHAM B. LANDIS. [1,. 5.] Witnesses:

D. J. Cnosnr, ALF. N. RUSSELL,

the eonibina;

a longitudinally movable i mounted on said bed, an electric 

